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1.04716

Millipore

Imidazole

buffer substance ACS

Synonym(s):

Imidazole, Glyoxaline, Iminazole

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About This Item

Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
288-32-4
Molecular Weight:
68.08
MDL number:
MFCD00005183
UNSPSC Code:
12161703
EC Index Number:
206-019-2
NACRES:
NB.21

grade

ACS reagent

Quality Level

200

vapor pressure

0.003 hPa ( 20 °C)

Assay

≥99% (perchloric acid titration)

form

solid

autoignition temp.

480 °C

potency

970 mg/kg LD50, oral (Rat)

pH

10.5 (20 °C, 67 g/L in H2O)

bp

256 °C/1013 hPa

mp

90 °C

transition temp

flash point 145 °C

solubility

633 g/L

density

1.233 g/cm3 at 20 °C

bulk density

500‑600 kg/m3

storage temp.

15-25°C

InChI

1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)

InChI key

RAXXELZNTBOGNW-UHFFFAOYSA-N

Analysis Note

Assay (perchloric acid titration): ≥ 99
Identity (IR-spectrum): conforms
pH-value (5 %, in water): 9.5 - 11.0
Melting point: 90 - 92
UV/VIS Spectrum: conforms
Fe (Iron): ≤ 0.001 %
Sulfated ash: ≤ 0.1
Water (according to Karl Fischer): ≤ 0.2
Corresponts to ACS

Signal Word

Danger

Hazard Statements

H302 - H314 - H360D

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

Flash Point(F)

293.0 °F - closed cup

Flash Point(C)

145 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

Certificates of Analysis (COA)

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